CIS 534 Week 10 Term Paper

CIS 534 Week 10 Term Paper – Strayer New
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Term Paper Project: Designing a Secure Network
This term paper involves putting together the various concepts learned throughout this course.
You are tasked with designing the most secure network possible, keeping in mind your goal of
supporting three (3) IT services: email, file transfer (centralized), and VPN. Your first step is to
design a single network capable of supporting there three (3) different services. Once you have
fully designed your network, you will need to provide three (3) workflow diagrams explaining
how your designed network handles the three (3) different transactions. The first is an internal
user sending an email using his / her corporate email address to a user on the Yahoo domain with
an arbitrary address of [email protected]. The second workflow diagram should show a user
initiating an FTP session from inside your network to the arbitrary site of ftp.netneering.com.
The third workflow is an externally located employee initiating a VPN session to corporate in
order to access files on the Windows desktop computer, DT-Corp534-HellenS, at work.
Write a ten to fifteen (10-15) page paper in which you complete the following three (3) Parts.
Note: Please use the following page breakdown to complete your assignment:
 Overall network diagram: One (1) page


Datapath diagrams: Three (3) pages (one for each diagram)



Write-up: six to ten (6-10) pages

Part 1
1a. Using Microsoft Visio or its open source alternative, create a diagram showing the overall
network you’ve designed from the user or endpoint device to the Internet cloud, and
everything in between, in which you:
i.
Follow the access, core, distribution layer model.
ii.
Include at a minimum:
 Authentication server
 Remote users
(i.e. Microsoft Active
 Workstations
Directory)
 Files share (i.e. CIFS)
 Routers
 Mail server
 Switches (and / or
 Web
hubs)
servers
 Local users
(both

internal
and
external)
 Firewalls
 Internet cloud

 Web proxy
 Email proxy
 FTP server (for internal-to-external
transport)

1b. Explain each network device’s function and your specific configuration of
each networking device.
1c. Design and label the bandwidth availability or capacity for each wired
connection.

 Part 2
2a. Using Microsoft Visio or its open source alternative, create a Datapath
Diagram for the following scenario:

Local user sends email to a Yahoo recipient. Local (corporate) user
having email address [email protected] sends an email to
[email protected].
i. Document and label the diagram showing protocols and path of the
data flow as data traverses through your network from source to
destination.
ii. Include path lines with arrows showing directions and layer 1, 2, 3, 4,
5, 6, and 7 (OSI) protocols that are used for each flow.
iii.
Show user authentication when necessary.
2b. Using Microsoft Visio or its open source alternative, create a Datapath
Diagram for the following scenario:

Local user, Jonny Hill, transfers file using ftp through the Internet to
another company’s site (ftp.netneering.com). He has to access the secure shell
using his active directory credentials to authenticate to the ftp server (linux
running Redhat) on the DMZ. He needs to transfer files from his desktop
across the Internet to ftp.netneering.com.
i. Document and label the diagram showing protocols and path of the
data flow as data traverses through your network from source to
destination.
ii. Include path lines with arrows showing directions and layer 1, 2, 3, 4,
5, 6, and 7 (OSI) protocols that are used for each flow.
iii.
Show user authentication when necessary.
2c. Using Microsoft Visio or its open source alternative, create a Datapath
Diagram for the following scenario:

Remote user, Hellen Stover, connects via VPN from home through the
Internet to her corporate desktop, DT-Corp534-HellenS. Hellen uses a
browser to initiate her VPN connection. By browsing to
https://VPNaccess.corp534.com, she arrives at a login page where she needs
to authenticate using her Active Directory credentials before the VPN tunnel is
built.
i. Document and label the diagram showing protocols and path of the
data flow as data traverses through your network from source to
destination.
ii. Include path lines with arrows showing directions and layer 1, 2, 3, 4,
5, 6, and 7 (OSI) protocols that are used for each flow.
iii.
Show user authentication when necessary.

2d. Explain how your overall design protects the organization from both inside
and outside attacks. Give examples.
2e. Explain how your layered design compensates for possible device failures or
breaches in network security.
2f. Determine whether any possible bottlenecks exist in your design.
2g. Explain how to make the file transfer process more secure.

 Part 3
3. Use at least three (3) quality resources in this assignment. Note: Wikipedia
and similar Websites do not qualify as quality resources.

 Your assignment must follow these formatting requirements:






Be typed, double spaced, using Times New Roman font (size 12), with oneinch margins on all sides; citations and references must follow APA or schoolspecific format. Check with your professor for any additional instructions.
Include a cover page containing the title of the assignment, the student’s name,
the professor’s name, the course title, and the date. The cover page and the
reference page are not included in the required assignment page length.
Include charts or diagrams created in Visio or an equivalent such as Dia. The
completed diagrams / charts must be imported into the Word document before
the paper is submitted.
